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Note 4 - Goodwill and Other Intangible Assets - Intangible Assets Other Than Goodwill (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Gross $ 24,829 $ 24,829
Accumulated amortization (5,850) (4,979)
Net 18,979 19,850
Marketing-Related Intangible Assets [Member]    
Gross 930 930
Accumulated amortization (457) (434)
Net $ 473 496
Useful Life (Year) 10 years  
Weighted average useful life remaining (Year) 5 years 36 days  
Noncompete Agreements [Member]    
Gross $ 270 270
Accumulated amortization (210) (206)
Net $ 60 64
Weighted average useful life remaining (Year) 3 years 292 days  
Noncompete Agreements [Member] | Minimum [Member]    
Useful Life (Year) 2 years  
Noncompete Agreements [Member] | Maximum [Member]    
Useful Life (Year) 5 years  
Trade Secrets [Member]    
Gross $ 250 250
Accumulated amortization (246) (233)
Net $ 4 17
Useful Life (Year) 5 years  
Weighted average useful life remaining (Year) 36 days  
Trade Names [Member]    
Gross $ 1,080 1,080
Accumulated amortization (675) (540)
Net $ 405 540
Useful Life (Year) 2 years  
Weighted average useful life remaining (Year) 292 days  
Computer Software, Intangible Asset [Member]    
Gross $ 12,229 12,229
Accumulated amortization (1,309) (997)
Net $ 10,920 11,232
Useful Life (Year) 10 years  
Weighted average useful life remaining (Year) 8 years 292 days  
Customer Relationships [Member]    
Gross $ 10,070 10,070
Accumulated amortization (2,953) (2,569)
Net $ 7,117 $ 7,501
Weighted average useful life remaining (Year) 4 years 219 days  
Customer Relationships [Member] | Minimum [Member]    
Useful Life (Year) 6 years 328 days  
Customer Relationships [Member] | Maximum [Member]    
Useful Life (Year) 9 years